AK8811 Datasheet, PDF (6/36 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
[AK8811/12]
DC Characteristics
[Power Supply:3.3V Temperature:25°C]
Parameter
Symbol Min
Max Units
Conditions
Digital Input High Voltage
VIH1 0.7VDD
V
Digital Input Low Voltage
VIL1
0.3VDD V
Digital Input leak Current
IL
±10
uA
Digital Output High Voltage
VOH
2.4
V
Digital Output Low Voltage
VOL1
0.4
V
Digital Maximum Load
Capacitance
20
pF
I²C Input High Voltage
I²C(SDA,SCL)
VIH2 0.7VDD
V
I²C Input Low Voltage
I²C(SDA,SCL)
VIL2
0.3VDD V
I²C(SDA) Output Voltage
VOL2
0.4
V
Note 1) D[9:0],FID/VSYNC, HSYNC, SYSCLK, /RESET pin
Note 2) FID/VSYNC, HSYNC pin
Note ) Connected Test Pin to Ground, SELA and SYSINV Pin are desired polarity.
Note1)
Note1)
Note1)
IOH =-1mA Note 2)
IOL = 2mA Note 2)
IOL = 3mA
Analog Characteristics and Dissipation Current
[Power Supply:3.3V Temperature:25°C]
Parameter
Min
Typ Max Units
Conditions
DAC Resolution
10
bit
DAC Integral linearity error
±0.6
±2
LSB
DAC Differential linearity error
±0.4
±1
LSB
DAC Output Full Scale Voltage
1.21
1.28
1.38
V
Note1)
DAC Output offset Voltage
5.0
mV
Note2)
Unbalances between DACs
±1
±5
%
Note3)
Isolation between DACs
50
dB
1MHz Full Scale
DAC Load Capacitance
30
pF
Note4)
Internal Reference Voltage
1.17 1.235 1.33
V
Internal Reference Drift
50
ppm/°C
DAC Current (Active mode)
15
mA
Note5)
DAC Current (Sleep mode)
10
uA
Note6)
Total Current
50
72
mA
Note7)
Note 1) Under the condition of output load 390Ω, IREF pin with 12kΩ, using internal reference. The output full-scale
current IOUT is calculated as Full scale output voltage (typ. 1.28V) /390Ω=typ. 3.3mA.
Note 2) DAC output when feeding code of 0 (Decimal).
Note 3) Deviation between the DAC output when feeding 1V generating code of 800(Decimal).
Note 4) The value is a design target. This value is not tested.
Note 5) All DACs are operating.
Note 6) All DACs are turned off with no system clock.
Note 7) NTSC internal color bar with 3ch DACs operation and slave mode operation. DAC output pins is connected with
only 390Ω load.
Rev.1.1
6
2000/01